diff options
Diffstat (limited to 'drivers/amba')
| -rw-r--r-- | drivers/amba/bus.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c index 36f2f42c8014..720aa6cdd402 100644 --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -19,6 +19,7 @@ #include <linux/clk/clk-conf.h> #include <linux/platform_device.h> #include <linux/reset.h> +#include <linux/of_irq.h> #include <asm/irq.h> @@ -371,12 +372,38 @@ static void amba_device_release(struct device *dev) kfree(d); } +static int of_amba_device_decode_irq(struct amba_device *dev) +{ + struct device_node *node = dev->dev.of_node; + int i, irq = 0; + + if (IS_ENABLED(CONFIG_OF_IRQ) && node) { + /* Decode the IRQs and address ranges */ + for (i = 0; i < AMBA_NR_IRQS; i++) { + irq = of_irq_get(node, i); + if (irq < 0) { + if (irq == -EPROBE_DEFER) + return irq; + irq = 0; + } + + dev->irq[i] = irq; + } + } + + return 0; +} + static int amba_device_try_add(struct amba_device *dev, struct resource *parent) { u32 size; void __iomem *tmp; int i, ret; + ret = of_amba_device_decode_irq(dev); + if (ret) + goto err_out; + ret = request_resource(parent, &dev->res); if (ret) goto err_out; |